package test.proxy;

public class SumProxy implements ISum {
	 
    public Sum trueSum;
 
    public SumProxy(Sum sum) {
        this.trueSum = sum;
    }
 
    public Integer sum() {
        try {
            return trueSum.sum();
        } catch ( Exception e ) {
            return new Integer(0);
        }
    }
} 